Mechanical movement.



PATENTED 1130.24, 19d?.

W TNESSES Homey UNITED STATES PATENT OFFICE.

WARREN H. TAYLOR, OF STAMFORD, CONNECTICUT, ASSIGNOR T THE YALE a TOWNEMANUFACTURING COMPANY, OF STANFORD, CONNECTICUT.

COMBINATION-LOCK.

Specication of Letters Patent.

Patented Dec. 24, 1907.

To all 'whom 'it muy concern:

Be it knoxm that I, WARREN H. TAYLOR, of Stamford, in the county ofFairfield and State of Connecticut, have invented certain new and usefulIm rovements in Combination-Locks; and I o hereby declare the followingto be a full, clear, and exact descri tion of the invention, such aswill enab e others skilled in the art to which it appertains to make anduse the same.

Mv invention relates to an improvement in com ination locks, andparticularly to means for detachably securing the nested tumblers andtumbler curb in lace.

Heretofore it has een the usual custom to thread the tumbler post andscrewr the nested tumblers and curb in place thereon. I This isobjectionable owing to the difliculty experienced in getting thetuniblers in proper position and at the same time have the drivlng pinon the. cam properly connected with the fly on the inner tumbler.

The object of my invention is to overcome the objection above noted, andprovide simple and effective connecting means between the llock casingand the tumblers, whereby the tumblers and curb properlyY nested, can bereadily and quickly placed in proper position with relation to the partswith which they coperate. Y

M- invention consists in the parts and com inations of parts as will bemore fully eX lained and pointed out in the claims.

the accompanying drawings Figure 1 is aviewin rear elevation of myimprov ed lock the rear plate being removed. Fiv. 2 is a view inlongitudinal section the rear plate being in place. Fig. 3 is a viewinvertir-al transverse section taken through the tumbler ost, and Fig. 4is an enlarged view showing t e spring latch mounted in the lock caseand also show' U a section of the curb, and Fig. 5 is a view o thesleeve and curb removed and shovn'ng the tumblers, interposed Washers 45and the seats for the tongues of the latter.

1 represents the lock case, and 2 the tumbler post ha a plain face onwhich the Sleeve 3 secure to the tumbler curb 4 is journaled. Thetumblers 5 are mounted to rotate, and are secured against movementendo-"isc on the sleeve, and are rotated by the spindle 6 and connectinggearing in the usual and well known manner.

The tumbler curb 4 is provided with two 55 forwardly projecting lilgs 7each of which is provided on its outer face with a shoulder 8 whichengages a corresponding shoulder 9 on the lu s 10. These lugs 10 aresecured respective y to the upper and lower sides of the lock case, andthe shoulders thereon are so located as to engage the shoulders 8 on thelugs projecting inwardl" from the tumbler curb 4 and thus lock t esleeve 3 carrying the tumblers 5 against outward movement. The lug l()located at the too of the case 1 e5 is recessed to receive the sprinpressed sliding pin 11 which latter is provided with n tongue 12 mo e ina slot 13 formed in the lower face of said ug, and normally restingwithin a slot 14 in the tumbler curb 4. 70 With the tumblers 5 seated onthe tumbler post 2 and the shoulders 8 on the lugs 7 of the curb 4,engaging the shoulders 9 on the lugs l0 on the case, and the curb 4locked against rotation bv the tongue 12, it will be seen that thetumblers will be positively retained in their proper positions withrelation to the parts with which they coperate.

To release the curb 4 and tumblers 5, it is simplv necessary to forcethe pin 11 for- 80 Wardlvy, thus carryin the tongue 12 out of the slot14 in the tum ler curb 4, and leaving the latter free to be turned. Bynow tuming the curb, the shoulders 8 on the lu 7 thereof will bedisengaged from the shou der 9 of the lugs 10 on the case l, whichreleases the nest of tumblers and curb and permits them to be removed,for changing or reassembling.

To replace the tumblers, the sleeve 3 is 90 placed on the post 2 and thecurb 4 turned or partly rota-ted until the shoulders 8 engage theshoulders 9 and the tongue 12 enters the slot 14 in the periphery of thecurb, thus locking the curb against any movement on the post. Thisconstruction provides a very secure attachment and accurate adjustmentbetween the driving cam and the inner tumbler- It is customary in locksof this kind to locate washers between the tumblers so as to prevent amoving tumbler from moving the next adjacent tumbler by its frictionalcontact therewith. With the present construc.

tion the lugs 7 projecting from the curb pro 105 thus prevented fromtiu'ning and prevent 110 ,removal by the tumblers as disclosed in saidpatent, conse uently in order to get at the tumblers, it wiqll benecessary to first set the tumblers, after which the back, or cover latecan be moved in the direction of the olt and when clear of the hol lugscan be iifted from the lock case. en the cover plate is in place it isheld so by the enl ment of the tongue 18 thereof with periperies of thetumblers and it 1s only when the gates 19 in the tumblers are set toalme with the to e 18, can the cover plate be moved in a direction todisengage same from the 'lock case.

It is evident that many slight changes might be resorted to in therelative arrangement of parts shown and described without departing fromthe spirit and scope of my invention hence I would have it understoodthat I do not wish to confine myself to the exact construction of parteshown and described, but,

Having fully described my invention what -I claim as new and desire tosecure by Ietters-Patent, is:-

1. In a combination lock, the combination with a lock case and tumblerpost, of a sexies of connected tumblers and a tumbler curb the latter bwholy Within the lock case, means carried sai curb, .engaging means onthe lock case for locking the curb and tumblers in position on the post,and means for rotating the tumblers.

2. In a combination iock the combination with a lock case and tumblerpost, of a series of assembled tumblers and a tumbler curb the latterbeing wholl within the lock case, means for holding sai tumblers andcurb on the post, means for preventing the curb from rotating and meansfor rotating the tumblers.

3. In a combination lock, the combination with a lock ease and tumblerpost, of a series of nested tumblers and a tumbler curb mounted on saidpost the said curb being wholly within the loclr case means on the curbengaging means on the case for preventing the tumbler and curb frommoving lengthwise of the post, a spring catch e aging the curb forpreventing the latter om rotating on the post and means for rotating thetumblers.

4. In a combination lock the combination with a lock case and a tumblerpost, of a-series of nested tumblers and a tumbler curb mounted on saidost, a shoulder on a part projecting from t e curb engaging a shoulderon the case for preventing movement of the tumbler and curb endwise ofthe post a spring catch for preventing rotation of t e curb when theparts are assembled, and means for rotating the tumblers.

5. In a combination lock the combination with a lock case, and a tumblerpost, of a series of nested tumblers and a tumbler curb mounted on saidpost, lugs projecting forwardly from said curb, washers interposedbetween the tumblers and eng 'ng said lugs, means for locking said curagainst movement in the direction of the length of the post, means forpreventing the curb from rotating on the post, and means for rotatin thetumblers.

6. he combination with a lock case and tumbler post, of a series ofnested tumblers and a tumbler curb mounted on said post, lugs projectingforwardly from said curb, washers inte d between the tumblers andprovided with tongues which rest in grooves in said lugs, means forpreventing the curb from moving in the direction of length of the post,means for holding the curb against rotation on the post and means forrotating the tumblers.

In testimony whereof, I have signed this specication in the presence oftwo subscribing witnesses.

WARREN H. TAYLOR.

Witnesses:

SCHUYLER Mnnnrr'r, WILLIAM P. MosELY.

